Pine Stem - Stock Image - C008/5167 - Science Photo Library

Cross section of a pine stem, (Pinus sp.); periderm, cortex, resin ducts, secondary phloem, secondary xylem and the primary xylem are all visible. 6x Bright Field. MICHAEL ABBEY/SCIENCE PHOTO LIBRARY

Pine stem cross section hi-res stock photography and images - Alamy

Pine tree stem cross-section, light micrograph - Stock Image - C047/6328 - Science Photo Library

Pine tree stem cross-section, light micrograph - Stock Image - C047/6328 - Science Photo Library

Pine stem cross section hi-res stock photography and images - Alamy

Pine Meristematic Stem, c.s., 12 µm Microscope Slide

Pine tree stem cross-section, light micrograph - Stock Image - C047/6328 - Science Photo Library

Pine Stem #3 Photograph by Frank Fox/science Photo Library - Fine Art America

2,027,400+ Stem Stock Photos, Pictures & Royalty-Free Images - iStock

Resin Duct - Stock Image - C004/8855 - Science Photo Library